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BadFileLookup.php

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1<?php

3namespaceMediaWiki\Page\File;

5useMediaWiki\FileRepo\RepoGroup;

6useMediaWiki\HookContainer\HookContainer;

7useMediaWiki\HookContainer\HookRunner;

8useMediaWiki\Linker\LinkTarget;

9useMediaWiki\Title\MalformedTitleException;

10useMediaWiki\Title\TitleParser;

11useWikimedia\ObjectCache\BagOStuff;

13classBadFileLookup {

15private $listCallback;

17privateBagOStuff $cache;

18privateRepoGroup $repoGroup;

19privateTitleParser $titleParser;

20privateHookRunner $hookRunner;

23private $badFiles;

34publicfunction__construct(

35 callable $listCallback,

36BagOStuff $cache,

37RepoGroup $repoGroup,

38TitleParser $titleParser,

39HookContainer $hookContainer

40 ) {

41 $this->listCallback = $listCallback;

42 $this->cache = $cache;

43 $this->repoGroup = $repoGroup;

44 $this->titleParser = $titleParser;

45 $this->hookRunner =newHookRunner( $hookContainer );

46 }

61publicfunctionisBadFile( $name, ?LinkTarget $contextTitle =null ) {

62// Handle redirects; callers almost always hit RepoGroup::findFile() anyway,

63// so just use that method because it has a fast process cache.

64 $file = $this->repoGroup->findFile( $name );

65// XXX If we don't find the file we also don't replace spaces by underscores or otherwise

66// validate or normalize the title, is this right?

67if ( $file ) {

68 $name = $file->getTitle()->getDBkey();

69 }

71// Run the extension hook

72 $bad =false;

73if ( !$this->hookRunner->onBadImage( $name, $bad ) ) {

74return (bool)$bad;

75 }

77if ( $this->badFiles ===null ) {

78 $list = ( $this->listCallback )();

79 $key = $this->cache->makeKey('bad-image-list', sha1( $list ) );

80 $this->badFiles = $this->cache->getWithSetCallback(

81 $key,

82 BagOStuff::TTL_DAY,

83function () use ( $list ) {

84return $this->buildBadFilesList( $list );

85 }

86 );

87 }

89return isset( $this->badFiles[$name] ) && ( !$contextTitle ||

90 !isset( $this->badFiles[$name][$contextTitle->getNamespace()][$contextTitle->getDBkey()] ) );

91 }

97privatefunction buildBadFilesList(string $list ): array {

98 $ret = [];

99 $lines = explode("\n", $list );

100foreach ( $lines as $line ) {

101// List items only

102if ( !str_starts_with( $line,'*' ) ) {

103continue;

104 }

105

106// Find all links

107 $m = [];

108// XXX What is the ':?' doing in the regex? Why not let the TitleParser strip it?

109if ( !preg_match_all('/\[\[:?(.*?)\]\]/', $line, $m ) ) {

110continue;

111 }

112

113 $fileDBkey =null;

114 $exceptions = [];

115foreach ( $m[1] as $i => $titleText ) {

116try {

117 $title = $this->titleParser->parseTitle( $titleText );

118 }catch ( MalformedTitleException ) {

119continue;

120 }

121if ( $i == 0 ) {

122 $fileDBkey = $title->getDBkey();

123 }else {

124 $exceptions[$title->getNamespace()][$title->getDBkey()] =true;

125 }

126 }

127

128if ( $fileDBkey !==null ) {

129 $ret[$fileDBkey] = $exceptions;

130 }

131 }

132return $ret;

133 }

134}

MediaWiki\FileRepo\RepoGroup

Prioritized list of file repositories.

DefinitionRepoGroup.php:38

MediaWiki\HookContainer\HookContainer

HookContainer class.

DefinitionHookContainer.php:57

MediaWiki\HookContainer\HookRunner

This class provides an implementation of the core hook interfaces, forwarding hook calls to HookConta...

DefinitionHookRunner.php:592

MediaWiki\Page\File\BadFileLookup

DefinitionBadFileLookup.php:13

MediaWiki\Page\File\BadFileLookup\__construct

__construct(callable $listCallback, BagOStuff $cache, RepoGroup $repoGroup, TitleParser $titleParser, HookContainer $hookContainer)

Do not call directly.

DefinitionBadFileLookup.php:34

MediaWiki\Page\File\BadFileLookup\isBadFile

isBadFile( $name, ?LinkTarget $contextTitle=null)

Determine if a file exists on the 'bad image list'.

DefinitionBadFileLookup.php:61

MediaWiki\Title\MalformedTitleException

MalformedTitleException is thrown when a TitleParser is unable to parse a title string.

DefinitionMalformedTitleException.php:32

MediaWiki\Title\TitleParser

A title parser service for MediaWiki.

DefinitionTitleParser.php:43

Wikimedia\ObjectCache\BagOStuff

Abstract class for any ephemeral data store.

DefinitionBagOStuff.php:87

MediaWiki\Linker\LinkTarget

Represents the target of a wiki link.

DefinitionLinkTarget.php:33

MediaWiki\Page\File

DefinitionBadFileLookup.php:3